Marine propulsion – Means for accomodating or moving engine fluids – Cooling for engine
Patent
1983-11-14
1985-08-06
Blix, Trygve M.
Marine propulsion
Means for accomodating or moving engine fluids
Cooling for engine
440 77, 440900, 114197, B63H 2126, F16K 3122
Patent
active
045333319
ABSTRACT:
The outboard motor includes a powerhead shroud defining an engine compartment for an internal combustion engine and a vent and drain assembly for ventilating the engine compartment to the atmosphere and for draining liquids, such as water, from the engine compartment. The vent and drain assembly includes a valve member movably disposed in an aperture at a low point in the bottom wall of the powerhead shroud opening the engine compartment to the atmosphere. The valve member includes a domed portion which extends through the aperture and defines a cavity for entrapped air and an annular sealing flange which is located exteriorly of the shroud bottom wall. The valve member is held by gravity in an open position wherein the sealing flange is displaced outwardly from the shroud bottom wall for ventilation and draining and is moved to a closed position wherein the sealing flange is in sealing engagement with the shroud bottom wall in response to a rise in the water level above the shroud bottom wall.
REFERENCES:
patent: 2367718 (1945-01-01), Farrell
patent: 3570465 (1971-03-01), Masaoka
patent: 4088149 (1978-05-01), Logsdon
Blix Trygve M.
Corl Rodney
Outboard Marine Corporation
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